Question

How to print characters that have odd frequencies of occurrence in a string with Python

Answer 1

def print_odd_frequencies_char(s): 
  
    letters = [0] * 256 

    for i in range(0, len(s)): 
        if (s[i].isalpha()):
            letters[ord(s[i])] += 1

    for i in range(0, 256):  
        if (letters[i] != 0 and letters[i] % 2 != 0): 
            print(chr(i), letters[i]) 



s = "python programming pro oo"; 
          
print_odd_frequencies_char(s);


'''
run:

a 1
h 1
i 1
o 5
p 3
r 3
t 1
y 1

'''

 

70+ SQL courses for beginners and professionals